Suzuno, known as Crestia Bell in Ente Isla, was raised in the Church of Ente Isla, where she was trained from a young age to serve as an executor of the Doctrinal Corrections Council. She was responsible for eliminating heretics and enemies of the Church, often carrying out assassinations in the name of divine justice.

She was deeply loyal to the Church, believing in their teachings without question. However, as the war against Demon King Satan unfolded, Suzuno began to witness the corruption within the organization, leading her to doubt the righteousness of her mission.

Assigned to monitor Maou in Japan, she took on the alias Suzuno Kamazuki and moved into the apartment next to his, intending to determine whether he still posed a threat. However, as she observed his mundane, hardworking life, she became increasingly conflicted about her original mission.

Suzuno has the elegant and refined appearance of a traditional noblewoman, with long dark blue hair, pale skin, and deep blue eyes. She is rarely seen without her kimono, as she struggles to adapt to modern clothing styles.

Despite being in Japan, Suzuno only owns traditional outfits, which often make her stand out awkwardly in casual settings. Her old-fashioned mannerisms and speech further reinforce her disconnect from modern society.

When engaging in combat, Suzuno wields a ceremonial war hammer, a weapon symbolic of her role as an executioner for the Church.

Suzuno is polite, soft-spoken, and elegant, often presenting herself as a courteous and refined young woman. However, beneath her graceful exterior, she possesses a cold, ruthless side, shaped by her time as an executor for the Church.

Initially, Suzuno views Maou as a threat and is willing to eliminate him if necessary. However, after witnessing his hardworking and peaceful lifestyle, she becomes deeply conflicted about whether her mission is justified.

She often struggles with modern technology and social norms, leading to unintentional comedic moments. For example, she has difficulty understanding fast food culture, much to the amusement of Maou and Chiho.

Despite her stoic nature, Suzuno has a kind heart and slowly opens up to those around her, forming unexpected friendships with Maou, Ashiya, Chiho, and even her former enemy, Emi.

• Observing Maou in Japan
  Suzuno moves into the apartment next to Maou’s, under the guise of a quiet and traditional neighbor. Initially, she maintains her distance, studying Maou’s daily life to determine whether he remains a threat. However, she is shocked to discover that the once-feared Demon King now works diligently at a fast-food restaurant, living a mundane and humble life. As she interacts more with Maou and his allies, Suzuno begins to question her mission, leading to an internal struggle between her past loyalty to the Church and her newfound perspective on Maou.

• Reevaluating the Church’s Ideals
  Over time, Suzuno starts to see the corruption within the Church more clearly. She realizes that the Church may not be as righteous as she once believed and that Maou, despite his past, is no longer the same evil ruler she was trained to destroy. Her journey of self-discovery becomes one of the most compelling aspects of her character, as she learns that justice is not always black and white.

• Becoming an Ally to Maou
  Although Suzuno originally intended to eliminate Maou, she eventually chooses to support him, recognizing that he is no longer the tyrant she once feared. She assists him in battles against other threats from Ente Isla, proving to be a capable warrior despite her preference for traditional methods. While she maintains a calm and composed demeanor, she often gets frustrated with Maou’s carefree attitude, leading to comedic arguments between them.